Problem 1. Before reading the materials for this week's module, how would you have described air pollution?
Problem 2. Before reading the materials for this week's module, what air pollutants did you typically think of?
Problem 3. Was there any particularly interesting or surprising information you learned this week? And then:
Problem 4. Given what we know about air pollutants, think about how can we protect health given the issue between local attainment and long range contributors. How might we reduce the regional transport of ozone for example?